/**
 * 身份证校验算法
 */
 
 
function SFID(card) {
 
    var vcity={ 11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",
		21:"辽宁",22:"吉林",23:"黑龙江",31:"上海",32:"江苏",
		33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南",
		42:"湖北",43:"湖南",44:"广东",45:"广西",46:"海南",50:"重庆",
		51:"四川",52:"贵州",53:"云南",54:"西藏",61:"陕西",62:"甘肃",
		63:"青海",64:"宁夏",65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"
	   };
	//检查号码是否符合规范，包括长度，类型
	var isCardNo = function(card)
	{
		//身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X
		var reg = /(^\d{15}$)|(^\d{17}(\d|X)$)/;
		if(reg.test(card) === false)
		{
			return false;
		}
		return true;
	};
	//取身份证前两位,校验省份
	var checkProvince = function(card)
	{
		var province = card.substr(0,2);
		if(vcity[province] == undefined)
		{
			return false;
		}
		return true;
	};
	//检查生日是否正确
	var checkBirthday = function(card)
	{
		var len = card.length;
		//身份证15位时，次序为省（3位）市（3位）年（2位）月（2位）日（2位）校验位（3位），皆为数字
		if(len == '15')
		{
			var re_fifteen = /^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/; 
			var arr_data = card.match(re_fifteen);
			var year = arr_data[2];
			var month = arr_data[3];
			var day = arr_data[4];
			var birthday = new Date('19'+year+'/'+month+'/'+day);
			return verifyBirthday('19'+year,month,day,birthday);
		}
		//身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为X
		if(len == '18')
		{
			var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/;
			var arr_data = card.match(re_eighteen);
			var year = arr_data[2];
			var month = arr_data[3];
			var day = arr_data[4];
			var birthday = new Date(year+'/'+month+'/'+day);
			return verifyBirthday(year,month,day,birthday);
		}
		return false;
	};
	//校验日期
	var verifyBirthday = function(year,month,day,birthday)
	{
		var now = new Date();
		var now_year = now.getFullYear();
		//年月日是否合理
		if(birthday.getFullYear() == year && (birthday.getMonth() + 1) == month && birthday.getDate() == day)
		{
			//判断年份的范围（3岁到100岁之间)
			var time = now_year - year;
			if(time >= 3 && time <= 100)
			{
				return true;
			}
			return false;
		}
		return false;
	};
	//校验位的检测
	var checkParity = function(card)
	{
		//15位转18位
		card = changeFivteenToEighteen(card);
		var len = card.length;
		if(len == '18')
		{
			var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2); 
			var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'); 
			var cardTemp = 0, i, valnum; 
			for(i = 0; i < 17; i ++) 
			{ 
				cardTemp += card.substr(i, 1) * arrInt[i]; 
			} 
			valnum = arrCh[cardTemp % 11]; 
			if (valnum == card.substr(17, 1)) 
			{
				return true;
			}
			return false;
		}
		return false; 
	};
	//15位转18位身份证号
	var changeFivteenToEighteen = function(card)
	{
		if(card.length == '15')
		{
			var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2); 
			var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'); 
			var cardTemp = 0, i;   
			card = card.substr(0, 6) + '19' + card.substr(6, card.length - 6);
			for(i = 0; i < 17; i ++) 
			{ 
				cardTemp += card.substr(i, 1) * arrInt[i]; 
			} 
			card += arrCh[cardTemp % 11]; 
			return card;
		}
		return card;
	};
 
    //是否为空
    if(card === '')
    {
        // mui.alert('请输入身份证号，身份证号不能为空');
        return false;
    }
    //校验长度，类型
    if(isCardNo(card) === false)
    {
        //  mui.alert('您输入的身份证号码不正确，请重新输入');
         return false;
    }
    //检查省份
    if(checkProvince(card) === false)
    {
        //  mui.alert('您输入的身份证号码不正确,请重新输入');
        return false;
    }
    //校验生日
    if(checkBirthday(card) === false)
    {
        //  mui.alert('您输入的身份证号码生日不正确,请重新输入');
        return false;
    }
    //检验位的检测
    if(checkParity(card) === false)
    {
        //  mui.alert('您的身份证校验位不正确,请重新输入');
       return false;
    }
//    console.info("OK");
    return true;
};

console.log(SFID("411122199402011011"));